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Ammo??? 5.7 vs 4.6 vs 17hmr vs 17mach2

Discussion in 'Rifle Country' started by ParChaser, Jul 10, 2006.

  1. ParChaser

    ParChaser New Member

    Oct 24, 2005
    DFW, Texas
    ok silly question but would like to know....

    How does the velocity, knockdown power and penetrarion (body armor piercing) compare on these 4 calibers?

    I was told that a 22 win mag would penetrate a bullet proof vest so I assume that 17 hmr does and FN and HK developed the 5.7 and 4.6 to penetrate body armor. So my question is how do the 17hmr and the 17 mach 2 compare? I know nothing about the 17hmr and the 17 mach 2. ANy help would be appreciated.
    Last edited: Jul 11, 2006
  2. rangerruck

    rangerruck Mentor

    Jan 12, 2006
    Texas, baby!
    this page will tell you all you need to know about the rimfires. I seriously doubt a rimfire could break through body armour, but if one could, i would say it would be a 17 hmr, 25 grn , out of a 24 inch bbl.
    the 5.7 is designed for penetration, it has the steel core, and is a heavier bullet, and it is centerfire.
    4.6 is a 17 cal bullet, depends really on the cartridge you put it in.
    a 17 remmy or 17 mach 4, centerfires, i bet would both penetrate a vest.
  3. beerslurpy

    beerslurpy member

    Nov 8, 2004
    Spring Hill, Florida
    With full auto, even 22LR can go through body armor. There was a drum fed 22LR that fired at 1200 rpm and could supposedly eat through vests very quickly. American Arms 180? I cant remember the exact name.

    Velocity is what goes through vests so I would think the 17HMR would probably have a pretty good shot at it. Dunno what kind of trauma would happen on the other side though, as it is little more than an airgun pellet.
  4. 50caliber123

    50caliber123 Active Member

    Oct 31, 2005
    high velocity bullets with little mass will go through soft armor. TO go through ceramics and other hard armor, you need a bullet with more mass. This is why a .308 AP will pierce through armor better than a .223 AP round.

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